Justin Ibarra
59da2da474
* add unit tests to ensure host type and platform are included * add host.os.name 'linux' to all linux rules * add host.os.name macos to mac rules * add host.os.name to windows rules; fix linux dates * update from host.os.name to host.os.type Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com> Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
79 lines
2.9 KiB
TOML
79 lines
2.9 KiB
TOML
[metadata]
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creation_date = "2021/01/12"
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integration = ["endpoint"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/02/22"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the execution of macOS built-in commands related to account or group enumeration. Adversaries may use account
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and group information to orient themselves before deciding how to act.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Enumeration of Users or Groups via Built-in Commands"
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note = """## Setup
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
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"""
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risk_score = 21
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rule_id = "6e9b351e-a531-4bdc-b73e-7034d6eed7ff"
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severity = "low"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Discovery"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where host.os.type == "macos" and event.type in ("start", "process_started") and
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(
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process.name : ("ldapsearch", "dsmemberutil") or
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(process.name : "dscl" and
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process.args : ("read", "-read", "list", "-list", "ls", "search", "-search") and
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process.args : ("/Active Directory/*", "/Users*", "/Groups*"))
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) and
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not process.parent.executable : ("/Applications/NoMAD.app/Contents/MacOS/NoMAD",
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"/Applications/ZoomPresence.app/Contents/MacOS/ZoomPresence",
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"/Applications/Sourcetree.app/Contents/MacOS/Sourcetree",
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"/Library/Application Support/JAMF/Jamf.app/Contents/MacOS/JamfDaemon.app/Contents/MacOS/JamfDaemon",
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"/Applications/Jamf Connect.app/Contents/MacOS/Jamf Connect",
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"/usr/local/jamf/bin/jamf",
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"/Library/Application Support/AirWatch/hubd",
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"/opt/jc/bin/jumpcloud-agent",
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"/Applications/ESET Endpoint Antivirus.app/Contents/MacOS/esets_daemon",
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"/Applications/ESET Endpoint Security.app/Contents/MacOS/esets_daemon",
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"/Library/PrivilegedHelperTools/com.fortinet.forticlient.uninstall_helper"
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)
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1069"
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name = "Permission Groups Discovery"
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reference = "https://attack.mitre.org/techniques/T1069/"
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[[rule.threat.technique.subtechnique]]
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id = "T1069.001"
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name = "Local Groups"
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reference = "https://attack.mitre.org/techniques/T1069/001/"
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[[rule.threat.technique]]
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id = "T1087"
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name = "Account Discovery"
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reference = "https://attack.mitre.org/techniques/T1087/"
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[[rule.threat.technique.subtechnique]]
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id = "T1087.001"
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name = "Local Account"
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reference = "https://attack.mitre.org/techniques/T1087/001/"
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[rule.threat.tactic]
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id = "TA0007"
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name = "Discovery"
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reference = "https://attack.mitre.org/tactics/TA0007/"
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